We present our code (LatticeQCD.jl) for quantum chromo-dynamics (QCD), which describes microscopic world inside of nucleons.
QCD calculation has been implemented by Fortran and C++ on supercomputers or GPU clusters because it requires huge numerical resource, i.g. Monte-Carlo with inversions of matrices with 10^16 x 10^16, and has been succeeded to calculate crucial numbers used in experiments. We implemented a code for QCD in Julia, which achieves compatible speed with a Fortran code.